145204444 has 36 divisors (see below), whose sum is σ = 322471800. Its totient is φ = 56572320.

The previous prime is 145204417. The next prime is 145204447. The reversal of 145204444 is 444402541.

145204444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145204447) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31519 + ... + 35830.

It is an arithmetic number, because the mean of its divisors is an integer number (8957550).

Almost surely, 2^145204444 is an apocalyptic number.

145204444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

145204444 is an abundant number, since it is smaller than the sum of its proper divisors (177267356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145204444 is a wasteful number, since it uses less digits than its factorization.

145204444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67378 (or 67369 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 145204444 is about 12050.0806636304. The cubic root of 145204444 is about 525.6055826788.

Adding to 145204444 its reverse (444402541), we get a palindrome (589606985).

The spelling of 145204444 in words is "one hundred forty-five million, two hundred four thousand, four hundred forty-four".